Most lyrics don’t even bother with punctuation, it’s usually only stuff that was originally written as a poem that somebody set to music that gets punctuation. So then what is a sentence if there’s no punctuation? I suppose you could argue the whole verse is a sentence.
The only thing that makes that not grade school level today is the use of words that have mostly evaporated from the language. Nobody does much “thus” and “hath” anymore. But at the time those words were common they weren’t advanced language. It’s gained grade levels with age.
Great lyrics don’t have to include fancy words. Great sentences don’t have to include fancy. Lyricism in language usually revolves around nice clean beats, clean beats are generally found in smaller words. Try working “prestidigitation” into some iambic pentameter... heck try working “iambic pentameter” into iambic pentameter. “Magic” works way better, two syllables, easy accent. “Veni, vidi, vici”, so simply a first semester Latin student can translate it, and yet one of the greatest sentences ever, even in English it’s got a great ring.
Oh, come on. It’s a 15.1 Flesh-Kincaid grade level sentence, with or without the archaic language. That sentence reflexes so often it hiccoughed and kicked itself in the ear.